1 /**
2   ******************************************************************************
3   * @file    stm32c0xx_hal_rtc.h
4   * @author  MCD Application Team
5   * @brief   Header file of RTC HAL module.
6   ******************************************************************************
7   * @attention
8   *
9   * Copyright (c) 2022 STMicroelectronics.
10   * All rights reserved.
11   *
12   * This software is licensed under terms that can be found in the LICENSE file
13   * in the root directory of this software component.
14   * If no LICENSE file comes with this software, it is provided AS-IS.
15   *
16   ******************************************************************************
17   */
18 
19 /* Define to prevent recursive inclusion -------------------------------------*/
20 #ifndef STM32C0xx_HAL_RTC_H
21 #define STM32C0xx_HAL_RTC_H
22 
23 #ifdef __cplusplus
24 extern "C" {
25 #endif
26 
27 /* Includes ------------------------------------------------------------------*/
28 #include "stm32c0xx_hal_def.h"
29 
30 /** @addtogroup STM32C0xx_HAL_Driver
31   * @{
32   */
33 
34 /** @defgroup RTC RTC
35   * @{
36   */
37 
38 /* Exported types ------------------------------------------------------------*/
39 /** @defgroup RTC_Exported_Types RTC Exported Types
40   * @{
41   */
42 
43 /**
44   * @brief  HAL State structures definition
45   */
46 typedef enum
47 {
48   HAL_RTC_STATE_RESET             = 0x00U,  /*!< RTC not yet initialized or disabled */
49   HAL_RTC_STATE_READY             = 0x01U,  /*!< RTC initialized and ready for use   */
50   HAL_RTC_STATE_BUSY              = 0x02U,  /*!< RTC process is ongoing              */
51   HAL_RTC_STATE_TIMEOUT           = 0x03U,  /*!< RTC timeout state                   */
52   HAL_RTC_STATE_ERROR             = 0x04U   /*!< RTC error state                     */
53 
54 } HAL_RTCStateTypeDef;
55 
56 /**
57   * @brief  RTC Configuration Structure definition
58   */
59 typedef struct
60 {
61   uint32_t HourFormat;        /*!< Specifies the RTC Hour Format.
62                                  This parameter can be a value of @ref RTC_Hour_Formats */
63 
64   uint32_t AsynchPrediv;      /*!< Specifies the RTC Asynchronous Predivider value.
65                                  This parameter must be a number between Min_Data = 0x00 and Max_Data = 0x7F */
66 
67   uint32_t SynchPrediv;       /*!< Specifies the RTC Synchronous Predivider value.
68                                  This parameter must be a number between Min_Data = 0x00 and Max_Data = 0x7FFF */
69 
70   uint32_t OutPut;            /*!< Specifies which signal will be routed to the RTC output.
71                                  This parameter can be a value of @ref RTCEx_Output_selection_Definitions */
72 
73   uint32_t OutPutRemap;       /*!< Specifies the remap for RTC output.
74                                  This parameter can be a value of @ref  RTC_Output_ALARM_OUT_Remap */
75 
76   uint32_t OutPutPolarity;    /*!< Specifies the polarity of the output signal.
77                                  This parameter can be a value of @ref RTC_Output_Polarity_Definitions */
78 
79   uint32_t OutPutType;        /*!< Specifies the RTC Output Pin mode.
80                                  This parameter can be a value of @ref RTC_Output_Type_ALARM_OUT */
81 
82   uint32_t OutPutPullUp;      /*!< Specifies the RTC Output Pull-Up mode.
83                                  This parameter can be a value of @ref RTC_Output_PullUp_ALARM_OUT */
84 } RTC_InitTypeDef;
85 
86 /**
87   * @brief  RTC Time structure definition
88   */
89 typedef struct
90 {
91   uint8_t Hours;            /*!< Specifies the RTC Time Hour.
92                                  This parameter must be a number between Min_Data = 0 and Max_Data = 12
93                                  if the RTC_HOURFORMAT_12 is selected.
94                                  This parameter must be a number between Min_Data = 0 and Max_Data = 23
95                                  if the RTC_HOURFORMAT_24 is selected */
96 
97   uint8_t Minutes;          /*!< Specifies the RTC Time Minutes.
98                                  This parameter must be a number between Min_Data = 0 and Max_Data = 59 */
99 
100   uint8_t Seconds;          /*!< Specifies the RTC Time Seconds.
101                                  This parameter must be a number between Min_Data = 0 and Max_Data = 59 */
102 
103   uint8_t TimeFormat;       /*!< Specifies the RTC AM/PM Time.
104                                  This parameter can be a value of @ref RTC_AM_PM_Definitions */
105 
106   uint32_t SubSeconds;     /*!< Specifies the RTC_SSR RTC Sub Second register content.
107                                  This parameter corresponds to a time unit range between [0-1] Second
108                                  with [1 Sec / SecondFraction +1] granularity */
109 
110   uint32_t SecondFraction;  /*!< Specifies the range or granularity of Sub Second register content
111                                  corresponding to Synchronous pre-scaler factor value (PREDIV_S)
112                                  This parameter corresponds to a time unit range between [0-1] Second
113                                  with [1 Sec / SecondFraction +1] granularity.
114                                  This field will be used only by HAL_RTC_GetTime function */
115 
116   uint32_t DayLightSaving;  /*!< Specifies RTC_DayLightSaveOperation: the value of hour adjustment.
117                                  This parameter can be a value of @ref RTC_DayLightSaving_Definitions */
118 
119   uint32_t StoreOperation;  /*!< Specifies RTC_StoreOperation value to be written in the BKP bit
120                                  in CR register to store the operation.
121                                  This parameter can be a value of @ref RTC_StoreOperation_Definitions */
122 } RTC_TimeTypeDef;
123 
124 /**
125   * @brief  RTC Date structure definition
126   */
127 typedef struct
128 {
129   uint8_t WeekDay;  /*!< Specifies the RTC Date WeekDay.
130                          This parameter can be a value of @ref RTC_WeekDay_Definitions */
131 
132   uint8_t Month;    /*!< Specifies the RTC Date Month (in BCD format).
133                          This parameter can be a value of @ref RTC_Month_Date_Definitions */
134 
135   uint8_t Date;     /*!< Specifies the RTC Date.
136                          This parameter must be a number between Min_Data = 1 and Max_Data = 31 */
137 
138   uint8_t Year;     /*!< Specifies the RTC Date Year.
139                          This parameter must be a number between Min_Data = 0 and Max_Data = 99 */
140 
141 } RTC_DateTypeDef;
142 
143 /**
144   * @brief  RTC Alarm structure definition
145   */
146 typedef struct
147 {
148   RTC_TimeTypeDef AlarmTime;     /*!< Specifies the RTC Alarm Time members */
149 
150   uint32_t AlarmMask;            /*!< Specifies the RTC Alarm Masks.
151                                       This parameter can be a value of @ref RTC_AlarmMask_Definitions */
152 
153   uint32_t AlarmSubSecondMask;   /*!< Specifies the RTC Alarm SubSeconds Masks.
154                                       This parameter can be a value of @ref RTC_Alarm_Sub_Seconds_Masks_Definitions */
155 
156   uint32_t AlarmDateWeekDaySel;  /*!< Specifies the RTC Alarm is on Date or WeekDay.
157                                      This parameter can be a value of @ref RTC_AlarmDateWeekDay_Definitions */
158 
159   uint8_t AlarmDateWeekDay;      /*!< Specifies the RTC Alarm Date/WeekDay.
160                                       If the Alarm Date is selected, this parameter must be set to a value
161                                       in the 1-31 range.
162                                       If the Alarm WeekDay is selected, this parameter can be a value of
163                                       @ref RTC_WeekDay_Definitions */
164 
165   uint32_t Alarm;                /*!< Specifies the alarm .
166                                       This parameter can be a value of @ref RTC_Alarms_Definitions */
167 } RTC_AlarmTypeDef;
168 
169 /**
170   * @brief  RTC Handle Structure definition
171   */
172 #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
173 typedef struct __RTC_HandleTypeDef
174 #else
175 typedef struct
176 #endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
177 {
178   RTC_TypeDef               *Instance;  /*!< Register base address    */
179 
180   RTC_InitTypeDef           Init;       /*!< RTC required parameters  */
181 
182   HAL_LockTypeDef           Lock;       /*!< RTC locking object       */
183 
184   __IO HAL_RTCStateTypeDef  State;      /*!< Time communication state */
185 
186 #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
187   void (* AlarmAEventCallback)(struct __RTC_HandleTypeDef *hrtc);      /*!< RTC Alarm A Event callback */
188 
189   void (* AlarmBEventCallback)(struct __RTC_HandleTypeDef *hrtc);      /*!< RTC Alarm B Event callback */
190 
191   void (* TimeStampEventCallback)(struct __RTC_HandleTypeDef *hrtc);      /*!< RTC TimeStamp Event callback */
192 
193   void (* MspInitCallback)(struct __RTC_HandleTypeDef *hrtc);      /*!< RTC Msp Init callback */
194 
195   void (* MspDeInitCallback)(struct __RTC_HandleTypeDef *hrtc);      /*!< RTC Msp DeInit callback */
196 
197 #endif /* (USE_HAL_RTC_REGISTER_CALLBACKS) */
198 
199 } RTC_HandleTypeDef;
200 
201 #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
202 /**
203   * @brief  HAL RTC Callback ID enumeration definition
204   */
205 typedef enum
206 {
207   HAL_RTC_ALARM_A_EVENT_CB_ID           = 0x00U,    /*!< RTC Alarm A Event Callback ID      */
208   HAL_RTC_TIMESTAMP_EVENT_CB_ID         = 0x02U,    /*!< RTC TimeStamp Event Callback ID    */
209   HAL_RTC_MSPINIT_CB_ID                 = 0x0EU,    /*!< RTC Msp Init callback ID           */
210   HAL_RTC_MSPDEINIT_CB_ID               = 0x0FU     /*!< RTC Msp DeInit callback ID         */
211 } HAL_RTC_CallbackIDTypeDef;
212 
213 /**
214   * @brief  HAL RTC Callback pointer definition
215   */
216 typedef  void (*pRTC_CallbackTypeDef)(RTC_HandleTypeDef *hrtc);  /*!< pointer to an RTC callback function */
217 #endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
218 
219 /**
220   * @}
221   */
222 
223 /* Exported constants --------------------------------------------------------*/
224 /** @defgroup RTC_Exported_Constants RTC Exported Constants
225   * @{
226   */
227 
228 /** @defgroup RTC_Hour_Formats RTC Hour Formats
229   * @{
230   */
231 #define RTC_HOURFORMAT_24                   0U
232 #define RTC_HOURFORMAT_12                   RTC_CR_FMT
233 /**
234   * @}
235   */
236 
237 /** @defgroup RTCEx_Output_selection_Definitions RTCEx Output Selection Definition
238   * @{
239   */
240 #define RTC_OUTPUT_DISABLE                  0U
241 #define RTC_OUTPUT_ALARMA                   RTC_CR_OSEL_0
242 
243 /**
244   * @}
245   */
246 
247 /** @defgroup RTC_Output_Polarity_Definitions RTC Output Polarity Definitions
248   * @{
249   */
250 #define RTC_OUTPUT_POLARITY_HIGH            0U
251 #define RTC_OUTPUT_POLARITY_LOW             RTC_CR_POL
252 /**
253   * @}
254   */
255 
256 /** @defgroup RTC_Output_Type_ALARM_OUT RTC Output Type ALARM OUT
257   * @{
258   */
259 #define RTC_OUTPUT_TYPE_PUSHPULL            0U
260 #define RTC_OUTPUT_TYPE_OPENDRAIN           RTC_CR_TAMPALRM_TYPE
261 /**
262   * @}
263   */
264 
265 /** @defgroup RTC_Output_PullUp_ALARM_OUT RTC Output Pull-Up ALARM OUT
266   * @{
267   */
268 #define RTC_OUTPUT_PULLUP_NONE              0U
269 #define RTC_OUTPUT_PULLUP_ON                RTC_CR_TAMPALRM_PU
270 /**
271   * @}
272   */
273 
274 /** @defgroup RTC_Output_ALARM_OUT_Remap RTC Output ALARM OUT Remap
275   * @{
276   */
277 #define RTC_OUTPUT_REMAP_NONE               0U
278 #define RTC_OUTPUT_REMAP_POS1               RTC_CR_OUT2EN
279 /**
280   * @}
281   */
282 
283 /** @defgroup RTC_AM_PM_Definitions RTC AM PM Definitions
284   * @{
285   */
286 #define RTC_HOURFORMAT12_AM                 ((uint8_t)0U)
287 #define RTC_HOURFORMAT12_PM                 ((uint8_t)1U)
288 /**
289   * @}
290   */
291 
292 /** @defgroup RTC_DayLightSaving_Definitions RTC DayLightSaving Definitions
293   * @{
294   */
295 #define RTC_DAYLIGHTSAVING_SUB1H            RTC_CR_SUB1H
296 #define RTC_DAYLIGHTSAVING_ADD1H            RTC_CR_ADD1H
297 #define RTC_DAYLIGHTSAVING_NONE             0U
298 /**
299   * @}
300   */
301 
302 /** @defgroup RTC_StoreOperation_Definitions RTC StoreOperation Definitions
303   * @{
304   */
305 #define RTC_STOREOPERATION_RESET            0U
306 #define RTC_STOREOPERATION_SET              RTC_CR_BKP
307 /**
308   * @}
309   */
310 
311 /** @defgroup RTC_Input_parameter_format_definitions RTC Input Parameter Format Definitions
312   * @{
313   */
314 #define RTC_FORMAT_BIN                      0U
315 #define RTC_FORMAT_BCD                      1U
316 /**
317   * @}
318   */
319 
320 /** @defgroup RTC_Month_Date_Definitions RTC Month Date Definitions
321   * @{
322   */
323 
324 /* Coded in BCD format */
325 #define RTC_MONTH_JANUARY                   ((uint8_t)0x01U)
326 #define RTC_MONTH_FEBRUARY                  ((uint8_t)0x02U)
327 #define RTC_MONTH_MARCH                     ((uint8_t)0x03U)
328 #define RTC_MONTH_APRIL                     ((uint8_t)0x04U)
329 #define RTC_MONTH_MAY                       ((uint8_t)0x05U)
330 #define RTC_MONTH_JUNE                      ((uint8_t)0x06U)
331 #define RTC_MONTH_JULY                      ((uint8_t)0x07U)
332 #define RTC_MONTH_AUGUST                    ((uint8_t)0x08U)
333 #define RTC_MONTH_SEPTEMBER                 ((uint8_t)0x09U)
334 #define RTC_MONTH_OCTOBER                   ((uint8_t)0x10U)
335 #define RTC_MONTH_NOVEMBER                  ((uint8_t)0x11U)
336 #define RTC_MONTH_DECEMBER                  ((uint8_t)0x12U)
337 
338 /**
339   * @}
340   */
341 
342 /** @defgroup RTC_WeekDay_Definitions RTC WeekDay Definitions
343   * @{
344   */
345 #define RTC_WEEKDAY_MONDAY                  ((uint8_t)0x01U)
346 #define RTC_WEEKDAY_TUESDAY                 ((uint8_t)0x02U)
347 #define RTC_WEEKDAY_WEDNESDAY               ((uint8_t)0x03U)
348 #define RTC_WEEKDAY_THURSDAY                ((uint8_t)0x04U)
349 #define RTC_WEEKDAY_FRIDAY                  ((uint8_t)0x05U)
350 #define RTC_WEEKDAY_SATURDAY                ((uint8_t)0x06U)
351 #define RTC_WEEKDAY_SUNDAY                  ((uint8_t)0x07U)
352 
353 /**
354   * @}
355   */
356 
357 /** @defgroup RTC_AlarmDateWeekDay_Definitions RTC AlarmDateWeekDay Definitions
358   * @{
359   */
360 #define RTC_ALARMDATEWEEKDAYSEL_DATE        0U
361 #define RTC_ALARMDATEWEEKDAYSEL_WEEKDAY     RTC_ALRMAR_WDSEL
362 
363 /**
364   * @}
365   */
366 
367 /** @defgroup RTC_AlarmMask_Definitions RTC AlarmMask Definitions
368   * @{
369   */
370 #define RTC_ALARMMASK_NONE                  0U
371 #define RTC_ALARMMASK_DATEWEEKDAY           RTC_ALRMAR_MSK4
372 #define RTC_ALARMMASK_HOURS                 RTC_ALRMAR_MSK3
373 #define RTC_ALARMMASK_MINUTES               RTC_ALRMAR_MSK2
374 #define RTC_ALARMMASK_SECONDS               RTC_ALRMAR_MSK1
375 #define RTC_ALARMMASK_ALL                   (RTC_ALARMMASK_NONE | RTC_ALARMMASK_DATEWEEKDAY | \
376                                              RTC_ALARMMASK_HOURS | RTC_ALARMMASK_MINUTES     | \
377                                              RTC_ALARMMASK_SECONDS)
378 
379 /**
380   * @}
381   */
382 
383 /** @defgroup RTC_Alarms_Definitions RTC Alarms Definitions
384   * @{
385   */
386 #define RTC_ALARM_A                         RTC_CR_ALRAE
387 
388 /**
389   * @}
390   */
391 
392 
393 /** @defgroup RTC_Alarm_Sub_Seconds_Masks_Definitions RTC Alarm Sub Seconds Masks Definitions
394   * @{
395   */
396 #define RTC_ALARMSUBSECONDMASK_ALL       0x00000000U            /*!< All Alarm SS fields are masked.
397                                                                         There is no comparison on sub seconds
398                                                                         for Alarm */
399 #define RTC_ALARMSUBSECONDMASK_SS14_1    RTC_ALRMASSR_MASKSS_0  /*!< SS[14:1] not used in Alarm
400                                                                         comparison. Only SS[0] is compared. */
401 #define RTC_ALARMSUBSECONDMASK_SS14_2    RTC_ALRMASSR_MASKSS_1  /*!< SS[14:2] not used in Alarm
402                                                                         comparison. Only SS[1:0] are compared  */
403 #define RTC_ALARMSUBSECONDMASK_SS14_3    (RTC_ALRMASSR_MASKSS_0 | RTC_ALRMASSR_MASKSS_1) /*!< SS[14:3] not used in Alarm
404                                                                                               comparison. Only SS[2:0]
405                                                                                               are compared  */
406 #define RTC_ALARMSUBSECONDMASK_SS14_4    RTC_ALRMASSR_MASKSS_2                           /*!< SS[14:4] not used in Alarm
407                                                                                               comparison. Only SS[3:0]
408                                                                                               are compared  */
409 #define RTC_ALARMSUBSECONDMASK_SS14_5    (RTC_ALRMASSR_MASKSS_0 | RTC_ALRMASSR_MASKSS_2) /*!< SS[14:5] not used in Alarm
410                                                                                                comparison. Only SS[4:0]
411                                                                                                are compared  */
412 #define RTC_ALARMSUBSECONDMASK_SS14_6    (RTC_ALRMASSR_MASKSS_1 | RTC_ALRMASSR_MASKSS_2) /*!< SS[14:6] not used in Alarm
413                                                                                               comparison.Only SS[5:0]
414                                                                                               are compared  */
415 #define RTC_ALARMSUBSECONDMASK_SS14_7    (RTC_ALRMASSR_MASKSS_0 | RTC_ALRMASSR_MASKSS_1 | \
416                                           RTC_ALRMASSR_MASKSS_2)                         /*!< SS[14:7] not used in Alarm
417                                                                                               comparison. Only SS[6:0]
418                                                                                               are compared  */
419 #define RTC_ALARMSUBSECONDMASK_SS14_8    RTC_ALRMASSR_MASKSS_3                           /*!< SS[14:8] not used in Alarm
420                                                                                               comparison. Only SS[7:0]
421                                                                                               are compared  */
422 #define RTC_ALARMSUBSECONDMASK_SS14_9    (RTC_ALRMASSR_MASKSS_0 | RTC_ALRMASSR_MASKSS_3) /*!< SS[14:9] not used in Alarm
423                                                                                               comparison. Only SS[8:0]
424                                                                                               are compared  */
425 #define RTC_ALARMSUBSECONDMASK_SS14_10   (RTC_ALRMASSR_MASKSS_1 | RTC_ALRMASSR_MASKSS_3) /*!< SS[14:10] not used in
426                                                                                               Alarm comparison. Only
427                                                                                               SS[9:0] are compared  */
428 #define RTC_ALARMSUBSECONDMASK_SS14_11   (RTC_ALRMASSR_MASKSS_0 | RTC_ALRMASSR_MASKSS_1 | \
429                                           RTC_ALRMASSR_MASKSS_3)                         /*!< SS[14:11] not used in
430                                                                                               Alarm comparison. Only
431                                                                                               SS[10:0] are compared */
432 #define RTC_ALARMSUBSECONDMASK_SS14_12   (RTC_ALRMASSR_MASKSS_2 | RTC_ALRMASSR_MASKSS_3) /*!< SS[14:12] not used in
433                                                                                               Alarm comparison. Only
434                                                                                               SS[11:0] are compared  */
435 #define RTC_ALARMSUBSECONDMASK_SS14_13   (RTC_ALRMASSR_MASKSS_0 | RTC_ALRMASSR_MASKSS_2 | \
436                                           RTC_ALRMASSR_MASKSS_3)                         /*!< SS[14:13] not used in
437                                                                                               Alarm comparison. Only
438                                                                                               SS[12:0] are compared */
439 #define RTC_ALARMSUBSECONDMASK_SS14      (RTC_ALRMASSR_MASKSS_1 | RTC_ALRMASSR_MASKSS_2 | \
440                                           RTC_ALRMASSR_MASKSS_3)                         /*!< SS[14] not used in Alarm
441                                                                                               comparison. Only SS[13:0]
442                                                                                               are compared  */
443 #define RTC_ALARMSUBSECONDMASK_NONE      RTC_ALRMASSR_MASKSS                             /*!< SS[14:0] are compared and
444                                                                                               must match to activate
445                                                                                               alarm. */
446 /**
447   * @}
448   */
449 
450 /** @defgroup RTC_Interrupts_Definitions RTC Interrupts Definitions
451   * @{
452   */
453 #define RTC_IT_TS                           RTC_CR_TSIE        /*!< Enable Timestamp Interrupt    */
454 #define RTC_IT_ALRA                         RTC_CR_ALRAIE      /*!< Enable Alarm A Interrupt      */
455 
456 /**
457   * @}
458   */
459 
460 /** @defgroup RTC_Flag_Mask    RTC Flag Mask (5bits) describe __HAL_RTC_GET_FLAG()
461   * @{
462   */
463 #define RTC_FLAG_MASK                       0x001FU        /*!< RTC flags mask (5bits) */
464 /**
465   * @}
466   */
467 
468 /** @defgroup RTC_Flags_Definitions RTC Flags Definitions
469   *        Elements values convention: 000000XX000YYYYYb
470   *           - YYYYY  : Interrupt flag position in the XX register (5bits)
471   *           - XX  : Interrupt status register (2bits)
472   *                 - 01: ICSR register
473   *                 - 10: SR or SCR or MISR or SMISR registers
474   * @{
475   */
476 #define RTC_FLAG_RECALPF                    (0x00000100U | RTC_ICSR_RECALPF_Pos) /*!< Recalibration pending Flag */
477 #define RTC_FLAG_INITF                      (0x00000100U | RTC_ICSR_INITF_Pos)   /*!< Initialization flag */
478 #define RTC_FLAG_RSF                        (0x00000100U | RTC_ICSR_RSF_Pos)     /*!< Registers synchronization flag */
479 #define RTC_FLAG_INITS                      (0x00000100U | RTC_ICSR_INITS_Pos)   /*!< Initialization status flag */
480 #define RTC_FLAG_SHPF                       (0x00000100U | RTC_ICSR_SHPF_Pos)    /*!< Shift operation pending flag */
481 #define RTC_FLAG_ALRAWF                     (0x00000100U | RTC_ICSR_ALRAWF_Pos)  /*!< Alarm A write flag */
482 #define RTC_FLAG_TSOVF                      (0x00000200U | RTC_SR_TSOVF_Pos)     /*!< Time-stamp overflow flag */
483 #define RTC_FLAG_TSF                        (0x00000200U | RTC_SR_TSF_Pos)       /*!< Time-stamp flag */
484 #define RTC_FLAG_ALRAF                      (0x00000200U | RTC_SR_ALRAF_Pos)     /*!< Alarm A flag */
485 /**
486   * @}
487   */
488 
489 /** @defgroup RTC_Clear_Flags_Definitions RTC Clear Flags Definitions
490   * @{
491   */
492 #define RTC_CLEAR_TSOVF                     RTC_SCR_CTSOVF   /*!< Clear Time-stamp overflow flag */
493 #define RTC_CLEAR_TSF                       RTC_SCR_CTSF     /*!< Clear Time-stamp flag */
494 #define RTC_CLEAR_ALRAF                     RTC_SCR_CALRAF   /*!< Clear Alarm A flag */
495 /**
496   * @}
497   */
498 
499 /**
500   * @}
501   */
502 
503 /* Exported macros -----------------------------------------------------------*/
504 /** @defgroup RTC_Exported_Macros RTC Exported Macros
505   * @{
506   */
507 
508 /** @brief Reset RTC handle state
509   * @param  __HANDLE__ RTC handle.
510   * @retval None
511   */
512 #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
513 #define __HAL_RTC_RESET_HANDLE_STATE(__HANDLE__) do{\
514                                                       (__HANDLE__)->State = HAL_RTC_STATE_RESET;\
515                                                       (__HANDLE__)->MspInitCallback = NULL;\
516                                                       (__HANDLE__)->MspDeInitCallback = NULL;\
517                                                      }while(0)
518 #else
519 #define __HAL_RTC_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_RTC_STATE_RESET)
520 #endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
521 
522 /**
523   * @brief  Disable the write protection for RTC registers.
524   * @param  __HANDLE__ specifies the RTC handle.
525   * @retval None
526   */
527 #define __HAL_RTC_WRITEPROTECTION_DISABLE(__HANDLE__)             \
528   do{                                       \
529     (__HANDLE__)->Instance->WPR = 0xCAU;   \
530     (__HANDLE__)->Instance->WPR = 0x53U;   \
531   } while(0U)
532 
533 /**
534   * @brief  Enable the write protection for RTC registers.
535   * @param  __HANDLE__ specifies the RTC handle.
536   * @retval None
537   */
538 #define __HAL_RTC_WRITEPROTECTION_ENABLE(__HANDLE__)              \
539   do{                                       \
540     (__HANDLE__)->Instance->WPR = 0xFFU;   \
541   } while(0U)
542 
543 /**
544   * @brief  Check whether the RTC Calendar is initialized.
545   * @param  __HANDLE__ specifies the RTC handle.
546   * @retval None
547   */
548 #define __HAL_RTC_IS_CALENDAR_INITIALIZED(__HANDLE__)  (((((__HANDLE__)->Instance->ICSR) &\
549                                                           (RTC_ICSR_INITS)) == RTC_ICSR_INITS) ? 1U : 0U)
550 
551 /**
552   * @brief  Add 1 hour (summer time change).
553   * @param  __HANDLE__ specifies the RTC handle.
554   * @param  __BKP__ Backup
555   *         This parameter can be:
556   *            @arg @ref RTC_STOREOPERATION_RESET
557   *            @arg @ref RTC_STOREOPERATION_SET
558   * @retval None
559   */
560 #define __HAL_RTC_DAYLIGHT_SAVING_TIME_ADD1H(__HANDLE__, __BKP__)                         \
561   do {                                                              \
562     __HAL_RTC_WRITEPROTECTION_DISABLE(__HANDLE__);                \
563     SET_BIT((__HANDLE__)->Instance->CR, RTC_CR_ADD1H);            \
564     MODIFY_REG((__HANDLE__)->Instance->CR, RTC_CR_BKP , (__BKP__)); \
565     __HAL_RTC_WRITEPROTECTION_ENABLE(__HANDLE__);                 \
566   } while(0);
567 
568 /**
569   * @brief  Subtract 1 hour (winter time change).
570   * @param  __HANDLE__ specifies the RTC handle.
571   * @param  __BKP__ Backup
572   *         This parameter can be:
573   *            @arg @ref RTC_STOREOPERATION_RESET
574   *            @arg @ref RTC_STOREOPERATION_SET
575   * @retval None
576   */
577 #define __HAL_RTC_DAYLIGHT_SAVING_TIME_SUB1H(__HANDLE__, __BKP__)                         \
578   do {                                                              \
579     __HAL_RTC_WRITEPROTECTION_DISABLE(__HANDLE__);                \
580     SET_BIT((__HANDLE__)->Instance->CR, RTC_CR_SUB1H);            \
581     MODIFY_REG((__HANDLE__)->Instance->CR, RTC_CR_BKP , (__BKP__)); \
582     __HAL_RTC_WRITEPROTECTION_ENABLE(__HANDLE__);                 \
583   } while(0);
584 
585 /**
586   * @brief  Enable the RTC ALARMA peripheral.
587   * @param  __HANDLE__ specifies the RTC handle.
588   * @retval None
589   */
590 #define __HAL_RTC_ALARMA_ENABLE(__HANDLE__)  ((__HANDLE__)->Instance->CR |= (RTC_CR_ALRAE))
591 
592 /**
593   * @brief  Disable the RTC ALARMA peripheral.
594   * @param  __HANDLE__ specifies the RTC handle.
595   * @retval None
596   */
597 #define __HAL_RTC_ALARMA_DISABLE(__HANDLE__)  ((__HANDLE__)->Instance->CR &= ~(RTC_CR_ALRAE))
598 
599 /**
600   * @brief  Enable the RTC Alarm interrupt.
601   * @param  __HANDLE__ specifies the RTC handle.
602   * @param  __INTERRUPT__ specifies the RTC Alarm interrupt sources to be enabled or disabled.
603   *          This parameter can be any combination of the following values:
604   *             @arg @ref RTC_IT_ALRA Alarm A interrupt, @ref RTC_Interrupts_Definitions
605   * @retval None
606   */
607 #define __HAL_RTC_ALARM_ENABLE_IT(__HANDLE__, __INTERRUPT__)   ((__HANDLE__)->Instance->CR |= (__INTERRUPT__))
608 
609 /**
610   * @brief  Disable the RTC Alarm interrupt.
611   * @param  __HANDLE__ specifies the RTC handle.
612   * @param  __INTERRUPT__ specifies the RTC Alarm interrupt sources to be enabled or disabled.
613   *         This parameter can be any combination of the following values:
614   *            @arg @ref RTC_IT_ALRA Alarm A interrupt
615   * @retval None
616   */
617 #define __HAL_RTC_ALARM_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR &= ~(__INTERRUPT__))
618 
619 /**
620   * @brief  Check whether the specified RTC Alarm interrupt has occurred or not.
621   * @param  __HANDLE__ specifies the RTC handle.
622   * @param  __INTERRUPT__ specifies the RTC Alarm interrupt sources to check.
623   *         This parameter can be:
624   *            @arg @ref RTC_IT_ALRA Alarm A interrupt
625   * @retval None
626   */
627 #define __HAL_RTC_ALARM_GET_IT(__HANDLE__, __INTERRUPT__) (((((__HANDLE__)->Instance->SR\
628                                                              )& ((__INTERRUPT__)>> 12U)) != 0U)? 1U : 0U)
629 
630 /**
631   * @brief  Check whether the specified RTC Alarm interrupt has been enabled or not.
632   * @param  __HANDLE__ specifies the RTC handle.
633   * @param  __INTERRUPT__ specifies the RTC Alarm interrupt sources to check.
634   *         This parameter can be:
635   *            @arg @ref RTC_IT_ALRA Alarm A interrupt
636   * @retval None
637   */
638 #define __HAL_RTC_ALARM_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__)     (((((__HANDLE__)->Instance->CR)\
639                                                                         & (__INTERRUPT__)) != 0U) ? 1U : 0U)
640 
641 /**
642   * @brief  Get the selected RTC Alarms flag status.
643   * @param  __HANDLE__ specifies the RTC handle.
644   * @param  __FLAG__ specifies the RTC Alarm Flag sources to check.
645   *         This parameter can be:
646   *            @arg @ref RTC_FLAG_ALRAF
647   *            @arg @ref RTC_FLAG_ALRAWF
648   * @retval None
649   */
650 #define __HAL_RTC_ALARM_GET_FLAG(__HANDLE__, __FLAG__)   (__HAL_RTC_GET_FLAG((__HANDLE__), (__FLAG__)))
651 
652 /**
653   * @brief  Clear the RTC Alarms pending flags.
654   * @param  __HANDLE__ specifies the RTC handle.
655   * @param  __FLAG__ specifies the RTC Alarm Flag sources to clear.
656   *          This parameter can be:
657   *             @arg @ref RTC_FLAG_ALRAF
658   * @retval None
659   */
660 #define __HAL_RTC_ALARM_CLEAR_FLAG(__HANDLE__, __FLAG__)  (__HAL_RTC_CLEAR_FLAG((__HANDLE__), RTC_CLEAR_ALRAF))
661 
662 /**
663   * @brief  Enable interrupt on the RTC Alarm associated Exti line.
664   * @retval None
665   */
666 #define __HAL_RTC_ALARM_EXTI_ENABLE_IT()            (EXTI->IMR1 |= RTC_EXTI_LINE_ALARM_EVENT)
667 
668 /**
669   * @brief  Disable interrupt on the RTC Alarm associated Exti line.
670   * @retval None
671   */
672 #define __HAL_RTC_ALARM_EXTI_DISABLE_IT()           (EXTI->IMR1 &= ~(RTC_EXTI_LINE_ALARM_EVENT))
673 
674 /**
675   * @brief  Enable event on the RTC Alarm associated Exti line.
676   * @retval None.
677   */
678 #define __HAL_RTC_ALARM_EXTI_ENABLE_EVENT()         (EXTI->EMR1 |= RTC_EXTI_LINE_ALARM_EVENT)
679 
680 /**
681   * @brief  Disable event on the RTC Alarm associated Exti line.
682   * @retval None.
683   */
684 #define __HAL_RTC_ALARM_EXTI_DISABLE_EVENT()         (EXTI->EMR1 &= ~(RTC_EXTI_LINE_ALARM_EVENT))
685 
686 /**
687   * @}
688   */
689 
690 /* Include RTC HAL Extended module */
691 #include "stm32c0xx_hal_rtc_ex.h"
692 
693 /* Exported functions --------------------------------------------------------*/
694 /** @defgroup RTC_Exported_Functions RTC Exported Functions
695   * @{
696   */
697 
698 /** @defgroup RTC_Exported_Functions_Group1 Initialization and de-initialization functions
699   * @{
700   */
701 /* Initialization and de-initialization functions  ****************************/
702 HAL_StatusTypeDef HAL_RTC_Init(RTC_HandleTypeDef *hrtc);
703 HAL_StatusTypeDef HAL_RTC_DeInit(RTC_HandleTypeDef *hrtc);
704 
705 void HAL_RTC_MspInit(RTC_HandleTypeDef *hrtc);
706 void HAL_RTC_MspDeInit(RTC_HandleTypeDef *hrtc);
707 
708 /* Callbacks Register/UnRegister functions  ***********************************/
709 #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
710 HAL_StatusTypeDef HAL_RTC_RegisterCallback(RTC_HandleTypeDef *hrtc, HAL_RTC_CallbackIDTypeDef CallbackID,
711                                            pRTC_CallbackTypeDef pCallback);
712 HAL_StatusTypeDef HAL_RTC_UnRegisterCallback(RTC_HandleTypeDef *hrtc, HAL_RTC_CallbackIDTypeDef CallbackID);
713 #endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
714 
715 /**
716   * @}
717   */
718 
719 /** @defgroup RTC_Exported_Functions_Group2 RTC Time and Date functions
720   * @{
721   */
722 /* RTC Time and Date functions ************************************************/
723 HAL_StatusTypeDef HAL_RTC_SetTime(RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef *sTime, uint32_t Format);
724 HAL_StatusTypeDef HAL_RTC_GetTime(RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef *sTime, uint32_t Format);
725 HAL_StatusTypeDef HAL_RTC_SetDate(RTC_HandleTypeDef *hrtc, RTC_DateTypeDef *sDate, uint32_t Format);
726 HAL_StatusTypeDef HAL_RTC_GetDate(const RTC_HandleTypeDef *hrtc, RTC_DateTypeDef *sDate, uint32_t Format);
727 /**
728   * @}
729   */
730 
731 /** @defgroup RTC_Exported_Functions_Group3 RTC Alarm functions
732   * @{
733   */
734 /* RTC Alarm functions ********************************************************/
735 HAL_StatusTypeDef HAL_RTC_SetAlarm(RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Format);
736 HAL_StatusTypeDef HAL_RTC_SetAlarm_IT(RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Format);
737 HAL_StatusTypeDef HAL_RTC_DeactivateAlarm(RTC_HandleTypeDef *hrtc, uint32_t Alarm);
738 HAL_StatusTypeDef HAL_RTC_GetAlarm(const RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Alarm,
739                                    uint32_t Format);
740 void              HAL_RTC_AlarmIRQHandler(RTC_HandleTypeDef *hrtc);
741 HAL_StatusTypeDef HAL_RTC_PollForAlarmAEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout);
742 void              HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc);
743 /**
744   * @}
745   */
746 
747 /** @defgroup  RTC_Exported_Functions_Group4 Peripheral Control functions
748   * @{
749   */
750 /* Peripheral Control functions ***********************************************/
751 HAL_StatusTypeDef   HAL_RTC_WaitForSynchro(RTC_HandleTypeDef *hrtc);
752 /**
753   * @}
754   */
755 
756 /** @defgroup RTC_Exported_Functions_Group5 Peripheral State functions
757   * @{
758   */
759 /* Peripheral State functions *************************************************/
760 HAL_RTCStateTypeDef HAL_RTC_GetState(const RTC_HandleTypeDef *hrtc);
761 /**
762   * @}
763   */
764 
765 /**
766   * @}
767   */
768 
769 /* Private types -------------------------------------------------------------*/
770 /* Private variables ---------------------------------------------------------*/
771 /* Private constants ---------------------------------------------------------*/
772 /** @defgroup RTC_Private_Constants RTC Private Constants
773   * @{
774   */
775 /* Masks Definition */
776 #define RTC_TR_RESERVED_MASK                (RTC_TR_PM | RTC_TR_HT | RTC_TR_HU | \
777                                              RTC_TR_MNT | RTC_TR_MNU| RTC_TR_ST | \
778                                              RTC_TR_SU)
779 #define RTC_DR_RESERVED_MASK                (RTC_DR_YT | RTC_DR_YU | RTC_DR_WDU | \
780                                              RTC_DR_MT | RTC_DR_MU | RTC_DR_DT  | \
781                                              RTC_DR_DU)
782 #define RTC_INIT_MASK                       0xFFFFFFFFU
783 #define RTC_RSF_MASK                        (~(RTC_ICSR_INIT | RTC_ICSR_RSF))
784 
785 #define RTC_TIMEOUT_VALUE                   1000U
786 
787 #define RTC_EXTI_LINE_ALARM_EVENT           EXTI_IMR1_IM19  /*!< External interrupt line 19 Connected to the RTC Alarm event */
788 
789 /**
790   * @}
791   */
792 
793 /* Private macros ------------------------------------------------------------*/
794 /** @defgroup RTC_Private_Macros RTC Private Macros
795   * @{
796   */
797 
798 /** @defgroup RTC_IS_RTC_Definitions RTC Private macros to check input parameters
799   * @{
800   */
801 #define IS_RTC_OUTPUT(OUTPUT) (((OUTPUT) == RTC_OUTPUT_DISABLE) || \
802                                ((OUTPUT) == RTC_OUTPUT_ALARMA))
803 
804 #define IS_RTC_HOUR_FORMAT(FORMAT)     (((FORMAT) == RTC_HOURFORMAT_12) || \
805                                         ((FORMAT) == RTC_HOURFORMAT_24))
806 
807 #define IS_RTC_OUTPUT_POL(POL) (((POL) == RTC_OUTPUT_POLARITY_HIGH) || \
808                                 ((POL) == RTC_OUTPUT_POLARITY_LOW))
809 
810 #define IS_RTC_OUTPUT_TYPE(TYPE) (((TYPE) == RTC_OUTPUT_TYPE_OPENDRAIN) || \
811                                   ((TYPE) == RTC_OUTPUT_TYPE_PUSHPULL))
812 
813 #define IS_RTC_OUTPUT_PULLUP(TYPE) (((TYPE) == RTC_OUTPUT_PULLUP_NONE) || \
814                                     ((TYPE) == RTC_OUTPUT_PULLUP_ON))
815 
816 #define IS_RTC_OUTPUT_REMAP(REMAP)   (((REMAP) == RTC_OUTPUT_REMAP_NONE) || \
817                                       ((REMAP) == RTC_OUTPUT_REMAP_POS1))
818 
819 #define IS_RTC_HOURFORMAT12(PM)  (((PM) == RTC_HOURFORMAT12_AM) || \
820                                   ((PM) == RTC_HOURFORMAT12_PM))
821 
822 #define IS_RTC_DAYLIGHT_SAVING(SAVE) (((SAVE) == RTC_DAYLIGHTSAVING_SUB1H) || \
823                                       ((SAVE) == RTC_DAYLIGHTSAVING_ADD1H) || \
824                                       ((SAVE) == RTC_DAYLIGHTSAVING_NONE))
825 
826 #define IS_RTC_STORE_OPERATION(OPERATION) (((OPERATION) == RTC_STOREOPERATION_RESET) || \
827                                            ((OPERATION) == RTC_STOREOPERATION_SET))
828 
829 #define IS_RTC_FORMAT(FORMAT) (((FORMAT) == RTC_FORMAT_BIN) || \
830                                ((FORMAT) == RTC_FORMAT_BCD))
831 
832 #define IS_RTC_YEAR(YEAR)              ((YEAR) <= 99U)
833 
834 #define IS_RTC_MONTH(MONTH)            (((MONTH) >= 1U) && ((MONTH) <= 12U))
835 
836 #define IS_RTC_DATE(DATE)              (((DATE) >= 1U) && ((DATE) <= 31U))
837 
838 #define IS_RTC_WEEKDAY(WEEKDAY) (((WEEKDAY) == RTC_WEEKDAY_MONDAY)    || \
839                                  ((WEEKDAY) == RTC_WEEKDAY_TUESDAY)   || \
840                                  ((WEEKDAY) == RTC_WEEKDAY_WEDNESDAY) || \
841                                  ((WEEKDAY) == RTC_WEEKDAY_THURSDAY)  || \
842                                  ((WEEKDAY) == RTC_WEEKDAY_FRIDAY)    || \
843                                  ((WEEKDAY) == RTC_WEEKDAY_SATURDAY)  || \
844                                  ((WEEKDAY) == RTC_WEEKDAY_SUNDAY))
845 
846 #define IS_RTC_ALARM_DATE_WEEKDAY_DATE(DATE) (((DATE) >0U) && ((DATE) <= 31U))
847 
848 #define IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(WEEKDAY) (((WEEKDAY) == RTC_WEEKDAY_MONDAY)    || \
849                                                     ((WEEKDAY) == RTC_WEEKDAY_TUESDAY)   || \
850                                                     ((WEEKDAY) == RTC_WEEKDAY_WEDNESDAY) || \
851                                                     ((WEEKDAY) == RTC_WEEKDAY_THURSDAY)  || \
852                                                     ((WEEKDAY) == RTC_WEEKDAY_FRIDAY)    || \
853                                                     ((WEEKDAY) == RTC_WEEKDAY_SATURDAY)  || \
854                                                     ((WEEKDAY) == RTC_WEEKDAY_SUNDAY))
855 
856 #define IS_RTC_ALARM_DATE_WEEKDAY_SEL(SEL) (((SEL) == RTC_ALARMDATEWEEKDAYSEL_DATE) || \
857                                             ((SEL) == RTC_ALARMDATEWEEKDAYSEL_WEEKDAY))
858 
859 #define IS_RTC_ALARM_MASK(MASK)  (((MASK) & ~(RTC_ALARMMASK_ALL)) == 0U)
860 
861 #define IS_RTC_ALARM(ALARM)      ((ALARM) == RTC_ALARM_A)
862 
863 #define IS_RTC_ALARM_SUB_SECOND_VALUE(VALUE) ((VALUE) <= RTC_ALRMASSR_SS)
864 
865 #define IS_RTC_ALARM_SUB_SECOND_MASK(MASK)   (((MASK) == RTC_ALARMSUBSECONDMASK_ALL) || \
866                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_1) || \
867                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_2) || \
868                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_3) || \
869                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_4) || \
870                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_5) || \
871                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_6) || \
872                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_7) || \
873                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_8) || \
874                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_9) || \
875                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_10) || \
876                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_11) || \
877                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_12) || \
878                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14_13) || \
879                                               ((MASK) == RTC_ALARMSUBSECONDMASK_SS14) || \
880                                               ((MASK) == RTC_ALARMSUBSECONDMASK_NONE))
881 
882 #define IS_RTC_ASYNCH_PREDIV(PREDIV)   ((PREDIV) <= 0x7FU)
883 
884 #define IS_RTC_SYNCH_PREDIV(PREDIV)    ((PREDIV) <= 0x7FFFU)
885 
886 #define IS_RTC_HOUR12(HOUR)            (((HOUR) > 0U) && ((HOUR) <= 12U))
887 
888 #define IS_RTC_HOUR24(HOUR)            ((HOUR) <= 23U)
889 
890 #define IS_RTC_MINUTES(MINUTES)        ((MINUTES) <= 59U)
891 
892 #define IS_RTC_SECONDS(SECONDS)        ((SECONDS) <= 59U)
893 
894 /**
895   * @}
896   */
897 
898 /**
899   * @}
900   */
901 
902 /* Private functions -------------------------------------------------------------*/
903 /** @defgroup RTC_Private_Functions RTC Private Functions
904   * @{
905   */
906 HAL_StatusTypeDef  RTC_EnterInitMode(RTC_HandleTypeDef *hrtc);
907 HAL_StatusTypeDef  RTC_ExitInitMode(RTC_HandleTypeDef *hrtc);
908 uint8_t            RTC_ByteToBcd2(uint8_t Value);
909 uint8_t            RTC_Bcd2ToByte(uint8_t Value);
910 /**
911   * @}
912   */
913 
914 
915 /**
916   * @}
917   */
918 
919 /**
920   * @}
921   */
922 
923 #ifdef __cplusplus
924 }
925 #endif
926 
927 #endif /* STM32C0xx_HAL_RTC_H */
928 
929